Zone apex
Start of authority
Email
Serial
2018051019
Refresh
1h
Retry
20m
Expire
1d
Negative cache TTL
6m
Question and response
Question
dig mx01.mail.alibaba.com. SOA
Answer
The response has no answer records.
Authority
alibaba.com. 600 SOA ns1.alibabadns.com. hostmaster.alibabadns.com. 2018051019 3600 1200 86400 360
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0